This is an optional feature and will only be available if it has been licensed in the key file.
Acquire must be in Config mode to perform these steps.
Acquire can monitor a field and write to other fields in the flow computer when it changes.
1. Select ‘Events…’ from the ‘Config’ Menu
The Events list will be displayed:
2. Click the ‘Add’ button
The Events entry screen will be displayed:
3. Enter the ‘Event Name’
4. Select “Value Changed” from the ‘Event Type’ popup menu
The ‘Monitored’ field will be displayed:
5. Click the ‘Select’ button next to the ‘Monitored’ field
The Field List window will be displayed:
6. Highlight the field to be monitored
7. Click the ‘OK’ button
The field will be added to the Events entry screen:
7. Select “Modbus Write” from the ‘Action Type’ popup menu
The ‘Copy to Field’ field will be displayed:
8. Click the ‘Select’ button next to the ‘Copy to Field’ field
The Field List window will be displayed again:
9. Highlight the field that should be copied to
10. Click the ‘OK’ button
The field will be added to the Events entry screen:
10. Enter the value to write in the ‘Value’ field
11. Click the ‘OK’ button
The event will be added to the Events list:
11. Click the ‘Apply’ button
Acquire will restart and the event will then be activated.
Whenever the monitored value changes Acquire will write to the ‘Copy to Field’ field.
In this example if Scratchpad Variable 3555 changes then Acquire will write a “1″ to Scratchpad Variable 3501.
Tip: If the monitored field value needs to be copied to the field, use the “Copy Field” action instead of “Modbus Write”.